There used to be soooo many junk websites out there, and very few large, trustworthy and useful sites. Now, there are soooo many useful sites, that the domains and the artificial boundaries between them are getting in the way. No matter how many feeds, tags, bookmarks or filters you have, you are probably wasting time AND missing something. There is just too much in a day.
The solution is surprisingly simple.
Websites are obsolete (beyond retail, organizations, publications and reference--and those may be too)... The Browser is the website.